Emil cornely



WING AND Patented Oct. 3,1876.

\lll ll IIIIIIJ E. CORNELY. MECHANISM FOR OPERATING STOP-MOTION'S'OF SEEMBROIDERY MACHINES. No.182,804.

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UNrrED STATES PATENT FFIGE.

EMIL OORNELY, OF PARIS, FRANCE.

' IMPROVEMENT IN MECHANISMS FOR OPERATING STOP-MOTIONS OF srwmo ANDEMBROIDERY MACHINES. v

Specification forming part of Letters Patent No. 182,804, dated October3, 1876; application filed August 21, 1876.

To all whom it may concern:

Be it known that I, EMIL GORNELY, ofParis, France, have invented certainnew and useful Improvements in Mechanism for Operating the Stop-Motionof Sewing and Embroidering Machines, of which the following is aspecification:

This invention is more particularly to be employed upon such sewing andembroidering machines as work with a universal feedmotion, and in whichthe feed is governed by means of a crank-handle which is conducted byhand, such as described and'shown in Letters Patent No. 83,9l0,-grantedto me November 10, 1868.

Heretofore in said machines the stop-motion was actuated by means of theleft foot, while the right foot drove the right treadle, the fly-wheel,and the entire mechanism of the machine. It follows therefrom that theentire fatigue of driving the machine was borne by the right foot, whilethe left foot remained comparatively idle, and the labor thus not onlywas very fatiguing, but the operator, for the same cause, could drivethe machine with a moderate speed only.

The object of my present invention is to enable the operator to drivethe machine with both his feet, and to operate the stop-motion by hand;but as the left hand is employed to conduct the material, and as theright hand must constantly hold the crank-handle for the purpose ofguiding the universal feed, it is evident that the mechanism foroperating the stop-motion can only be combined with the crank-hankle ifboth feet are to be employed for driving the machine.

The difficulty which presented itself in the execution of this inventionwas, that the operation of the stop must be performed in any position ofthe crank-that is, while the latter is turned in any direction theoperator must be able to stop the machine or to set it.

in motion instantaneously. I have resolved this problem in the followingmanner, as will be seen by reference to the description and theaccompanying drawings, in which- Figure 1 represents a vertical sectionthrough my improved mechanism. Fig. 2 represents a side view of themechanism used heretofore,

is provided at its upper end with a collar, 9,

and the sleeve d can slide freely upon the crank-pin p.

H represents the crank. It is secured to the hollow shaft b, on which itturns freely, and which is provided at its upper end with a pinion, L,which drives the pinion M and all the gears of the machine which connectthe feeding and stitching mechanism with the oran k-handle. The hollowshaft b is supported by the bracket K.

Gr represents a horizontal lever, which is pivoted at s to the crank-armH. A pin, 7",

Fig. 3, of lever Gr, enters into the collar 9 of the sleeve d, and theother end of lever Gr supports a loose rod, E, which can slide freelywithin the hollow shaft 1), and Whose upper end bears against the end 2of the horizontal lever D, pivoted at a, and which actuates the rod Dand the stop-motion of the machine in the same manner as was doneheretofore by rod D. (Represented at Fig. 2, and shown and described inLetters Patent No. 83,910.)

Thus, by slightly pressing downward the handle N the pin 4 and lever Gwill follow the movement, and the other end of lever G will raise therod E within the hollow shaft 1), which will thus raise the end 2 oflever D, thus pressing downward the end 3 of said lever and the rod D,which releases the stop-motion, whereby the machine is set in motioninstantaneously, no matter in what position the crank-handle N may be,and so little pressure is required that the weight of the hand is almostsufficient to set the machine in motion. Upon raising the handle N therod E will descend, thus liberating the lever D and the rod D, whichwill be pushed upward by the spring in the stopmotion, whereby themachine is arrested instantaneously. This operation of the crankhandledoes not in the least interfere with the free motion which is necessaryfor guiding the feed, and the operator can thus drive the ma 2. reaeoewhole.

In Fig. 2 I have represented the mechanism which was used heretofore foroperating the stop-motion by means of the left foot, which, by apressure upon its treadle, acts upon lever B, being connected thereto bymeans of the rod A. Lever B actuates rod D and the stop-motion, as shownand described in Letters Patent No. 83,910.

Having thus fully described the nature of my invention, what I claimtherein as new, and desire to secure by Letters Patent, is

1. The combination, with the feed and the stop motion of universal-feedsewing o'r embroidering machines, of a single crank-handle, which bothgoverns the feed and operates the stop motion, substantially as hereinset forth.

2. The combination, with the stop-motion mechanism, of the slidinghandle N, lever G, hollow shaft 1), rod E, and lever D, substantially inthe manner herein set forth.

EMIL CORNELY.

Witnesses:

RoBT. M. HooPER, DAVID T. S. FULLER.

